Robust entanglement
量子物理
2009-11-11 v1
摘要
It is common belief among physicists that entangled states of quantum systems loose their coherence rather quickly. The reason is that any interaction with the environment which distinguishes between the entangled sub-systems collapses the quantum state. Here we investigate entangled states of two trapped Ca ions and observe robust entanglement lasting for more than 20 seconds.
引用
@article{arxiv.quant-ph/0508021,
title = {Robust entanglement},
author = {H. Haeffner and F. Schmidt-Kaler and W. Haensel and C. F. Roos and T. Koerber and M. Chwalla and M. Riebe and J. Benhelm and U. D. Rapol and C. Becher and R. Blatt},
journal= {arXiv preprint arXiv:quant-ph/0508021},
year = {2009}
}